.business_nav {
    width: 75%;
    display: flex;
    justify-content: space-between;
}
.downlis {
  height: 50px;
  & > li {
    font-size: 14px;
    margin-left: 35px;
    position: relative;
    .down_t,a,h4 {
      color:rgba(255, 255, 255, 0.8);
      display: block;
      white-space: nowrap;
    }
    a:hover {
      color: #fff;
    }
.down_t {
  cursor: pointer;
  transition: all .4s;
  line-height: 50px;

&:hover {
  color: #fff;
}
}
._t {
  color:rgba(255, 255, 255, 0.45)
}
&:hover {
  .down_t * {
    color: #fff;
  }
  .lis {
    display: block;
  }
}
.lis {
  display: none;
}
  }
  .lis {
    border-radius: 0 0 4px 4px;
    background: #001C4A;
    position: absolute;
    z-index: 1000;
    padding:20px 20px;
    padding-bottom: 0;
    padding-right: 50px;
    i {
      margin-right: 8px;
    }
   h4{
      padding-bottom:6px;
    }
.t1 {margin-bottom: 10px;}
    ._t{
      line-height: 30px;
      margin-left: 5px;
      display: block;
    }
    .t_route {
      a {
        line-height: 40px;
        margin-left: 20px;
      }
    }
  }
}